Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of estimating when it's the best time to plant astilbe is to check out the USDA zone info for Kingsburg.

Planting Calendar for Astilbe

Frost tolerance for astilbe:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

You can plant astilbe just a tiny bit earlier in the year because they do ok in moderate cold.

The earliest that you can plant astilbe in Kingsburg is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant astilbe and expect a good harvest is probably September. If you wait any later than that and your astilbe may not have a chance to fully mature. You can get started a little bit earlier by starting your astilbe indoors.

Last Frost Date

The average date of last frost is February 15 in Kingsburg. It might get as low as 25°F during the coldest months of winter.

Since the USDA zone info for Kingsburg is an average the actual date of last frost is different every year. Half of the time in Kingsburg you get surprised by a frost after February 15 so be sure to be ready to protect your astilbe if you have a surprise late frost.

USDA Zone Info for Kingsburg

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Kingsburg

You may be interested in your other planting guides for Kingsburg.